dridex | 494b40958bda91d9bc9092423c840e1ff4990e81f41d1bd5367920d915df871b

Analysis

max time kernel
43s
max time network
51s
platform
windows10_x64
resource
win10v20210410
submitted
21-04-2021 18:17

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General

Target

494b40958bda91d9bc9092423c840e1ff4990e81f41d1bd5367920d915df871b.dll
Size

157KB
MD5

f9b15e21a378a371422146826577d474
SHA1

156c93ac503ebb6d839977225bdd5d9bdafac349
SHA256

494b40958bda91d9bc9092423c840e1ff4990e81f41d1bd5367920d915df871b
SHA512

d50173ff309df1ceb75bbb47febd612c0ad8f799f5523d2a0594e7d56264fce64f04b3a3b55c8ccea469a3fe166325c18e1e6c5c5a42086bcc071b33ae3f6196

Score

10^/10

dridex 40112 botnet evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

40112

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral1/memory/1864-115-0x0000000073860000-0x000000007388D000-memory.dmp	dridex_ldr

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1824 wrote to memory of 1864	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 1864	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 1864	1824	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\494b40958bda91d9bc9092423c840e1ff4990e81f41d1bd5367920d915df871b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\494b40958bda91d9bc9092423c840e1ff4990e81f41d1bd5367920d915df871b.dll,#1
2⤵
- Checks whether UAC is enabled
PID:1864

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1864-114-0x0000000000000000-mapping.dmp

Download
memory/1864-115-0x0000000073860000-0x000000007388D000-memory.dmp

Filesize
180KB

Download
memory/1864-117-0x00000000008E0000-0x00000000008E6000-memory.dmp

Filesize
24KB

Download